摘要:随着光集成研究领域的发展,尤其是最近几年微纳集成工艺取得了突破性进展,微环谐振器渐渐引起全世界研究者的兴趣和重视。微环谐振器具有很多优点:波长选择性比较好、功能多、尺寸小等等,通信领域中已经广泛使用。本文首先介绍了微环谐振器的研究目的、国内外发展现状以及微环的应用,接下来介绍了波分复用技术,主要介绍单环谐振波分复用器的结构和参数。本文中还详细阐述了传输矩阵方法和时域有限差分方法。
在此基础上,根据传输矩阵方法设计了微环阵列,并设计了单环谐振器,并联双环、串联双环谐振器以及并联三环、串联三环谐振器的模型。并借助maple以及OptiFDTD仿真软件分析了各个谐振器的结构参数对输出光谱特性的影响。结果表明:微环半径变小,微环的弯曲损耗就会变大,损耗增加,谐振波长峰值就会下降。微环半径变大,自由光谱范围变小;波导间距增大,振幅耦合比减小;但是相比较微环半径来说,波导厚度对微环的性能影响比较小。
关键词:微环谐振器;传输矩阵;微环阵列;
Abstract:With the development of optical integration research field, especially in recent years, micro-nano integration process has made a breakthrough, micr o-ring resonator gradually attracted the attention of researchers around the w orld and attention. Micro-ring resonator has many advantages: wavelength se lectivity is better, more features, small size, etc., has been widely used in t he field of communications. In this paper, we first introduce the research ba ckground of micro-ring resonator, the development status at home and abroa d and the application of micro-ring. Next, we introduce the wavelength pi sion multiplexing technology; mainly introduce the structure and parameters of single-ring resonant wave pision multiplexer. In this paper, the transfer matrix method and time domain finite difference method are also described in detail.
On the basis of this, the microchannel array is designed according to t he transmission matrix method, and the model of single ring resonator, para llel double ring, series double ring resonator and parallel tricyclic and tande m ring resonator is designed. The influence of the structural parameters of each resonator on the output spectral characteristics was analyzed by means of maple and OptiFDTD simulation software. The results show that the mi cro - ring radius becomes smaller and the bending loss of the micro - ring becomes larger and the loss increases and the peak value of the resonant wavelength decreases. The radius of the micro-ring increases, the free spectr al range becomes smaller; the waveguide spacing increases and the amplitud e-coupling ratio decreases. However, compared with the micro-ring radius, t he waveguide thickness has little effect on the performance of the micro-rin g.
Key words: micro-ring resonator,transfer matrix,Micro-ring array
目录
第一章绪论 1
1.1微环谐振器研究背景 1
1.2微环谐振器的研究目的